Plow-lift.



L. E. WATERMAN.

PLOW LIFT.

APPLICATION FILED JULY 7, 1913.

1,104,750. Patented July 21, 1914.

2 SHEETS-SHEET l.

'I'Hb' NORRIS PETERS U0.. PHUTD-LITHO.. WASHINGTON. l)

L. E. WATERMAN.

PLOW LIFT.

APPLICATION FILED JULY 7, 1913. 1 1 04,7 50. Patented July 21, 1914,

2 SHEETS-SHEET 2.

THE NORRIS PETERS CO.. FHOTOJ-ITHO., WASHINFTDN n C.

, ITED sTATEs PATENT oEinQE,

LEwIs WATERMAN, OE ROOKEORD, ILLINOIS, AssIGNOE. To EMEnsoN-BRANTINGHAM COMPANY, OE ROOKEORL', ILLINOIs, A CORPORATION or ILLINOIS.

rLOw-LIET.

yT0 all 'whom 'it may concern:

Be it known that I, LEWIS E. WATERMAN,`

acitizen of thel lUnited Statesresiding at Rockford, in the countyof Winnebago and- State of Illinois, have invented certain new and useful lIignprovements in Plow-Lifts, ot which the following isa specification.

This invention relates to plow lifts and-r morev particularly to those adaptedtobe manually operated. p

1t is the object of this invention to provide a vertically movable plow beam with means in cooperation with a ratchetdrive to raise and lower the plow beam to its inoperative and operative positions.

It is vthe further 'object to construct said raising and lowering means to be manually operated, to provide means for adjusting the limits of the various positions attained by the means for holding thev beam in its raised position and for releasing it from saidy raised position.

In the accompanying drawings: Figure 1, is a side elevation of my improved plow raising and lowering raised position;

position. Fig. I3, is a detail the operation of raising' the plow beam.v

beam to fall. y forward lever operating. end of the `vplow beln'l. 6, 1S a Vgrtcl Section @n the. Y line 6 6 of Fig. 5. l

Fixedly carried by a frame 7 whichfis adapted to be suitably drawn, is a bracket 8 having vertically disposed upper and lower pins 9 and' 10 respectively. A plowA beam 11 carrying a plow 12 at its rear endhas bolted to its front end a yoked bracket 13,`the lower arm oftheyokebeing pivotally mounted on pin 10 and the upper' arm hav mg an elongatedslot 1A in which the pin 9 is located, this connection between the frame and plow beam allowing the plow beam a vertically pivotal movement from the fixed bracket 8.

A wheel-support 15 pivotally carriedv by the bracket 16 which is mounted at the free plow beam, and` to provide a novel.

means applied to -ag plow beam, and illustrating the beam vin its Fig.v 2, is a similar viewl with the plow beam in its lowered' working sectional view `on the line 3-3 of Fig. 5, showing fthe posi-v tions of the ratchet engaging means during specification of Leaersratent. Patented July 27.1, 1914, Application filed July '7, `1913. Serial No. 777,678.

end of the plow beamycarries 'a rotatable supporting-wheel 17 An arm 18 is fiXedly Acarried by the wheelsupport 15,I at "right angles thereto, making with the wheel-support,4 a bell-'crank lever ypivoted` in the bracket 16. An 'adjustable stop 19 against which the brace 20 of the arm 18 is adapted to contact, forms ay limit for theheight'to y which the plow beam may be raised. ,l A lever 21 pivoted concentric with wheel-support 15 carriesva fixed stop 22 against which the arm 18 isadapted to contact 'to limit the lowered workingposition of thev plow beam,

and said lever 21`is adjustable'to vary the limit O' said loweredk position by the hand lever 23 pivoted to the bolt 2t'which is carried bythe plow vbeam`2md` bracket 13, the hand lever havinga thumb-catchconnection with a toothed segment 25 formed with said bracket, and having a rod-connection 26 with the free end of said adjustable'arm 21.

@ne end of bolt 211 is supported bythe sleeve 'extension 27 (Fig. 6) carried by the plow beam, and mounted loose upon said V sleeveadjacent' the beam is the hand lever 28, und mounted rotatablyon-sleeve 27v at rvthe inner end of said'lever is the ratchetwheel 29 formed with a drum 30 at its outer side. cable 31 has one end fixed withsaid druml and its other end connected to the free end of Varm 18, therev being a coiled yspring 32 mounted upon the sleeve 27 tofeXert a tension uponthe drum to keep Ithe cable wound upon the drum. A catch-dog 33 is pivotally mounted upon bolt 34 carried by r'the bracket 13 and is held yieldingly into en gagement 'with `the teeth ot', y wheel'fby acoiled spring 35. A'eeddog 36 said ratchetis pivotally carried by the lever 28 so that it will" be maintained' through gravity, in engagement with the ratchet-wheel.' The feed-dog 36 has a lug `extension 37 yat one side'of its headwhichis adapted` to contacta cam lface 3S extending from/one side of bracket 13 to limit'the downward pivotal movement of said dogand to guide the dog .into `contact'with the catch-dog 33 as will be hereinafer described. A stop 39 formed with bracket 13 limits the backward movement of the lever 28, and a projecting pin A() carried at the inner side of theratcheb wheel serves as a stop against which the lever 28y is adapted to contact when raising the plow beam, this stop 40 preventingthe f ratchet-wheel from being rotated to raise the plow beam beyondi a predetermined point. Y

'Ifheloperationl of' raising and: lowering they plow is as follows: Assuming the plow toV be in its working position in the ground, as seen in Fig. 2, the lever 2S will be oscillat'edA backward and forward but not to such a d'e-4 gree' as to actuate t-he dog 33, thus rotating the ratchet wheel by the feedfdog, and Winding the cable 31 upon the drum 30, the cable by pulling, upon arm 18 rockingthe wheel-support upon its pivot. and,v raising the plow beam; `When thestop- 40 (.as seen in Fig. 3) reaches the lever 28, movement of this lever is stoppedl as to raising the plow any higher, thusthe height of raising limited.. But should this stop become defective thestop 19 would limit this movement.; said stop 19. beingadapted also, when the plow is raised` and is being.- drawn over the ground, to limit further pivotal movementy ofthe beam support. With the` plow beamthus in its raised1 position,.to lower it, the lever 28 willl be moved forward as show-ni in; Fig. 2, thefl'ug; 7TV of dog: 36 being carried upon-cam face 35E-'to release said dog from they ratchet wheel and tofguidethedoginto contact with the catch-.dog 3? and release samey from the ratchet wheel-whereupon thezplow will drop to its lowered position by' its: own weight. Through the adjustment of levers 23. tov each anm 21,.. the depth, to' which theplow shall cut mayV befregnlated;

' I claim as my invention.

l. In ai plow.l structure; t-he combination with a. draftfraine and a plow beam1v pivot allly connected thereto, of lifting meanscooperating v with. the plow beam, a. drum, a` cable connection between thetdrum and lift-l ing means,v a lever` for rotating the drum, a catch adaptedI tov engage the drum, means. movable-with the drum for. limiting capabilityof operationy of the-lever upon thedrunn, andf means operablev through movement off said: lever for actuating the catch.

2. In' a: plow structure, the combination.` with aV draft frame anda plow. beam4 pivot-Y ally connected thereto, of lifting means for' the plow beam, andY operating means having; connection with the liftingmeans including;

to lock themovement of said lifting means;

in one direction, means movablel through,

l nesses: a reciprocable lever m -operableconnection l withsaid operating means, a catch-adapted:

Aand means operable through movement of ysaldi levery torelease said? catch fromisaid locked position.4

3. In a plow structure, the combination with a vertically movable plow beam, of a bell-crank member pivoted thereto, a landwheel journaled on one arm of the'bellcrank .member ai pivoted lever having a stop contactable with the other arm of said bellcrank member, and a segmentfengagable le, venhaving a connection with said pi'voted lever andradaptedf to maintain same. invarious setk positions.l

4. The combinationA with a; plow beam and lifting device, of aA drum having connection with said'- device,l, a` lever having af ratchet connection. with said drum. and. beingreciprocablezto rotate same, and a stop carried by the drum and against which saidlever is adaptedt to contact. at. apred'etermined; point in the rotation of drum.V

5. 'llhecombinationwitha plow beam and lifting device, of a drum having connection with said device, aratchet wheel inconnectio-n with. the dnum ai lever, a.d`og= operated byy the lever to engagefthe ratchet wheelto rotatesame,.a catch held in engagement with aport'ion ofthe drum,.and said; dog being in such operable relation, with. said catch that the. dog," through-t movement of the lever,

may Imove. the' catch; from. its saidv engagement with the said? portion ofthe drum, and

Imeanslfor limiting, the,` capability of opera*- tion` of the lever on the drum..

6; Thecombinationwith. a. plow beam and .n lifting device, ofa .drum .having aconnection with said. device, a ratchet wheel in connection-with the drum, a: lever, a. dog operated bythelever .to engage the ratchet wheel and yrotatesame, acatch-dog heldfyieldingly into engagement with the ratchet wheel, means forA guiding the dog into contact with said catchfdogto release said catch-dogfrom the ratchet, wheel, and means for limiting the capability of operation of the lever on the drum.

In testimony whereoffI have hereunto set my hand in presence of two subscribing witi LEVIS`r E. WATERMAN.

Witnesses:

JOHN F.v MCCANNA', Jr.,

El). E. NL Benni...

Copies of-this patent-imay'be obtained fbrve cents eaehgibyaddressingzthe; "Commissioner: of Patents,

Wuhingtamh. 0: 

